Ubuntu :: Changed Name And Wont Load?

(first and formost let me start by saying that im currently using ubuntu 10.10)ok so im not claiming to be a genius or anything but in my infinite wisdom i wanted to change the names that came up in the terminal because it wasnt cool enough . you know xxx@xxxx: /$i went onto google to see if this was possible and saw that all i had to do was input the following commands.... gksu gedit /etc/hosts andgksu gedit /etc/hostnameand change it to the new names. well it worked...sorta. from what i could tell the group name was changed but not the username. so i then went to system---> preferences----->username groupnames (***this order might be typed in wrong since im NOT in ubuntu!!!) and proceeded to change the info there. I went ahead and selected the name and then clicked on the advance setting. From what I remember, I went into the last tab and saw the old username. I went ahead again and changed it to the new name that I wanted. Not sure if this matter but I chose a first and a last name with a space (xxxx xxxx). Any who, it then asked me if I wanted to copy something from one folder to the other....and agian i said sure why not.

After everything copied over, i decided to restart my comp to make sure everything worked accordingly. well that's when all the fun started. as it rebooted i started to get wonderful little messages. they are 1. hostname main process xxx terminated with status 12. Could not update iceauthority file /home/xxxx/.ICEauthority3. there is a problem with the configuration server. (usr/lib/libgconf2-4)gconf-sanity-check2-exited with status 256)4. nautilus could not create the following required folders: /home/xxxx/desktop,/home/xxxx/.nautilusit then takes me to a bare original desktop background that ubuntu 10.10 came with wih. i then started to research what could be the problem and found nothing. what i did stumble upon was this...i hit ALT + F2 and typed "gksu nautilus"it brought up a folder. I started clicking away randomly and managed to find all of my files sitting nicely just waiting for my return. Additionally, I somehow randomly saved a blank file on the desktop. I then right clicked it and chose to open it with Mozilla. It opened it up!!!. i then managed to surf as usual like nothing ever happened.so, im not sure where to go from here. ALL my files are still there and im still able to surf the web albeit in a odd manner. so this being my case........CAN SOMEONE PLEASE HELP ME GET BACK TO WHERE I USE TO BE?Im knew to Ubuntu (clearly) and have spent days on end getting everything to work just right. I would hate to start everything from scratch